Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9365732 | Oily ink composition for ballpoint pens | Aya Otsubo, Yoshitaka Morimoto, Natsumi Koide | 2016-06-14 |
| 4822417 | Marking ink composition | Satoshi Saito | 1989-04-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9365732 | Oily ink composition for ballpoint pens | Aya Otsubo, Yoshitaka Morimoto, Natsumi Koide | 2016-06-14 |
| 4822417 | Marking ink composition | Satoshi Saito | 1989-04-18 |